石油和天然气钻孔机可以在海平面以下数里之外传送地震冲击波，收集回声，并对该地区是否存在石油做出推理。
The oil and gas driller can send seismic waves miles under the sea floor, gather the echoes, and deduce whether petroleum might exist there.
此设计用于化爆产生平面动载的氮化硅粉体冲击波活化研究，取得了较为理想的测试结果。
The method has been used in experiments of shock activating Si 3Ni 4 powder materials, and the results are satisfactory.
此设计用于化爆产生平面动载的氮化硅粉体冲击波活化研究，取得了较为理想的测试结果。
The method has been used in experiments of shock activating Si 3Ni 4 powder materials, and the results are satisfactory.
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